Chapter 3
Thinking Mathematically · 538 exercises
Problem 1
Use Euler diagrams to determine whether each argument is valid or invalid. All writers appreciate language. All poets are writers. Therefore, all poets appreciate language.
4 step solution
Problem 1
Use a truth table to determine whether the symbolic form of the argument is valid or invalid. \(p \rightarrow q\) \(\frac{\sim p}{\therefore \sim q}\)
4 step solution
Problem 1
Write the negation of each conditional statement. If I am in Los Angeles, then I am in California.
3 step solution
Problem 1
a. Use a truth table to show that \(\sim p \rightarrow q\) and \(p \vee q\) are equivalent. b. Use the result from part (a) to write a statement that is equivalent to If the United States does not energetically support the development of solar- powered cars, then it will suffer increasing atmospheric pollution.
4 step solution
Problem 1
Construct a truth table for the given statement. \(p \rightarrow \sim q\)
4 step solution
Problem 1
Let \(p\) and q represent the following statements: $$ \begin{aligned} &p: 4+6=10 \\ &q: 5 \times 8=80 \end{aligned} $$ Determine the truth value for each statement. \(\sim q\)
3 step solution
Problem 1
Let \(p\) and \(q\) represent the following simple statements: p: I'm leaving. a:You're staying. I'm leaving and you're staying.
3 step solution
Problem 1
Determine whether or not each sentence is a statement. René Descartes came up with the theory of analytic geometry by watching a fly walk across a ceiling.
3 step solution
Problem 2
Use Euler diagrams to determine whether each argument is valid or invalid. All physicists arc scientists. All scientists attended college. Therefore, all physicists attended college.
4 step solution
Problem 2
Use a truth table to determine whether the symbolic form of the argument is valid or invalid. \(p \rightarrow q\) \(\frac{\sim p}{\therefore q}\)
3 step solution
Problem 2
Write the negation of each conditional statement. If I am in Houston, then I am in Texas.
2 step solution
Problem 2
a. Use a truth table to show that \(p \rightarrow q\) and \(\sim p \vee q\) are equivalent. b. Use the result from part (a) to write a statement that is equivalent to If a number is even, then it is divisible by \(2 .\)
3 step solution
Problem 2
Construct a truth table for the given statement. \(\sim p \rightarrow q\)
4 step solution
Problem 2
Let \(p\) and q represent the following statements: $$ \begin{aligned} &p: 4+6=10 \\ &q: 5 \times 8=80 \end{aligned} $$ Determine the truth value for each statement. \(\sim p\)
3 step solution
Problem 2
Determine whether or not each sentence is a statement. The number of U.S. patients killed annually by medical errors is equivalent to four jumbo jets crashing each week.
3 step solution
Problem 3
Use Euler diagrams to determine whether each argument is valid or invalid. All clocks keep time accurately. All time-measuring devices keep time accurately. Therefore, all clocks are time-measuring devices.
4 step solution
Problem 3
Use a truth table to determine whether the symbolic form of the argument is valid or invalid. \(p \rightarrow \sim q\) \(\frac{q}{\therefore \sim p}\)
5 step solution
Problem 3
Write the negation of each conditional statement. If it is purple, then it is not a carrot.
3 step solution
Problem 3
Use a truth table to determine whether the two statements are equivalent. \(\sim p \rightarrow q, q \rightarrow \sim p\)
4 step solution
Problem 3
Construct a truth table for the given statement. \(\sim(q \rightarrow p)\)
3 step solution
Problem 3
Let \(p\) and q represent the following statements: $$ \begin{aligned} &p: 4+6=10 \\ &q: 5 \times 8=80 \end{aligned} $$ Determine the truth value for each statement. \(p \wedge q\)
3 step solution
Problem 3
Determine whether or not each sentence is a statement. On January 20, 2017, Hillary Clinton became America's 45 th president.
3 step solution
Problem 4
Use Euler diagrams to determine whether each argument is valid or invalid. All cowboys live on ranches. All cowherders live on ranches. Therefore, all cowboys are cowherders.
3 step solution
Problem 4
Use a truth table to determine whether the symbolic form of the argument is valid or invalid. \(\sim p \rightarrow q\) \(\frac{\sim q}{\therefore p}\)
3 step solution
Problem 4
Write the negation of each conditional statement. If the TV is playing, then I cannot concentrate.
2 step solution
Problem 4
Use a truth table to determine whether the two statements are equivalent. \(\sim p \rightarrow q, p \rightarrow \sim q\)
4 step solution
Problem 4
Construct a truth table for the given statement. \(\sim(p \rightarrow q)\)
3 step solution
Problem 4
Let \(p\) and q represent the following statements: $$ \begin{aligned} &p: 4+6=10 \\ &q: 5 \times 8=80 \end{aligned} $$ Determine the truth value for each statement. \(q \wedge p\)
3 step solution
Problem 4
Determine whether or not each sentence is a statement. On January 20,2017 , Donald Trump became America's first Hispanic president.
3 step solution
Problem 5
Use Euler diagrams to determine whether each argument is valid or invalid. All insects have six legs. No spiders have six legs. Therefore, no spiders are insects.
4 step solution
Problem 5
Use a truth table to determine whether the symbolic form of the argument is valid or invalid. \(p \wedge \sim q\) \(p\) \(\therefore \sim q\)
3 step solution
Problem 5
Write the negation of each conditional statement. If he doesn't, I will.
2 step solution
Problem 5
Use a truth table to determine whether the two statements are equivalent. \((p \rightarrow \sim q) \wedge(\sim q \rightarrow p), p \leftrightarrow \sim q\)
3 step solution
Problem 5
Construct a truth table for the given statement. \((p \wedge q) \rightarrow(p \vee q)\)
4 step solution
Problem 5
Let \(p\) and q represent the following statements: $$ \begin{aligned} &p: 4+6=10 \\ &q: 5 \times 8=80 \end{aligned} $$ Determine the truth value for each statement. \(\sim p \wedge q\)
3 step solution
Problem 5
Determine whether or not each sentence is a statement. Take the most interesting classes you can find.
2 step solution
Problem 6
Use Euler diagrams to determine whether each argument is valid or invalid. All humans are warm-blooded. No reptiles are warm-blooded. Therefore, no reptiles are human.
3 step solution
Problem 6
Use a truth table to determine whether the symbolic form of the argument is valid or invalid. \(\sim p \vee q\) \(\underline{\therefore q}\)
4 step solution
Problem 6
Write the negation of each conditional statement. If she says yes, he says no.
2 step solution
Problem 6
Use a truth table to determine whether the two statements are equivalent. \((\sim p \rightarrow q) \wedge(q \rightarrow \sim p), \sim p \leftrightarrow q\)
3 step solution
Problem 6
Construct a truth table for the given statement. \((p \vee q) \rightarrow(p \wedge q)\)
5 step solution
Problem 6
Let \(p\) and q represent the following statements: $$ \begin{aligned} &p: 4+6=10 \\ &q: 5 \times 8=80 \end{aligned} $$ Determine the truth value for each statement. \(p \wedge \sim q\)
3 step solution
Problem 6
Determine whether or not each sentence is a statement. Don't try to study on a Friday night in the dorms.
3 step solution
Problem 7
Use Euler diagrams to determine whether each argument is valid or invalid. All insects have six legs. No spiders are insects. Therefore, no spiders have six legs.
3 step solution
Problem 7
Use a truth table to determine whether the symbolic form of the argument is valid or invalid. \(p \rightarrow q\) \(q \rightarrow p\) \(\therefore p \wedge q\)
4 step solution
Problem 7
Write the negation of each conditional statement. If there is a blizzard, then all schools are closed.
2 step solution
Problem 7
Use a truth table to determine whether the two statements are equivalent. \((p \wedge q) \wedge r, p \wedge(q \wedge r)\)
3 step solution
Problem 7
Construct a truth table for the given statement. \((p \rightarrow q) \wedge \sim q\)
4 step solution
Problem 7
Let \(p\) and q represent the following statements: $$ \begin{aligned} &p: 4+6=10 \\ &q: 5 \times 8=80 \end{aligned} $$ Determine the truth value for each statement. \(\sim p \wedge \sim q\)
3 step solution
Problem 7
Let \(p\) and q represent the following simple statements: p: I study. \(q:\) I pass the course. Write each compound statement in symbolic form. I study or I pass the course.
3 step solution